On May 1, 2011, at 6:16 AM, Keith Purtell wrote:

> I noticed the following problem today
> when I view my splash page in Google Chrome. The lower borders in the
> navigation box render normally, but all vertical and topmost borders are
> too light. I'm baffled.
> 
> http://www.keithpurtell.com/kthings/chrome.png

Interesting…
Which OS is that ? And which version of Chrome ?
Looking at the screenshot, the lower borders are rendered twice - once the 
expected color, once a lighter shade. Looks more like an issue with graphics 
rendering libs. it is like the borders are not painted hooked on the pixel grid 
(painted between 2 pixels).

Does it changes if you resize the window slightly (making the width an even or 
odd number of pixels) ?

#navigatex is set to have a width of 604px (even), but due to margin: auto, it 
doesn't always land exactly on the pixel grid, depending on the width of the 
parent blocks(s)/viewport. Each LI has a computed height of 109px (odd number 
!) on my system.

(I can't repro the issue on OS X 10.6.7 nor on Ubuntu 11.04)

> I'm baffled.

I'm not really. Looking at Chrome on Ubuntu 11.04 and 10.10, I see quite a few 
issues at the level of graphics rendering. All (very) small things (slightly 
distorted characters, uneven rounding in corners,…) but they add up quickly. I 
don't see those with Epiphany 2.31b, which also uses WebKit. That leads me to 
believe that those problems are in Chrome's Skia graphics rendering engine.

Philippe
--
Philippe Wittenbergh
http://l-c-n.com/






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